A two-step TB skin test is often used to test for tuberculosis (TB) infection. It involves two separate tests administered one to four weeks apart.
Two-step TST are likely to be required for some employers and travellers such as, but not limited to:
• Health care providers.
• Inmates and employees of correctional facilities.
• Some travellers prior to departure to countries with a high TB incidence, where exposure to TB is considered likely
Unless your employer specifically requests a two-step TB skin test, a single TB skin test is generally sufficient for employment. Please check with your employer for specific TB testing requirements.
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